Idiopathic nephrotic syndrome (INS), characterized by heavy proteinuria, edema and hypoalbuminemia, is the most common glomerular disease in childhood (1). Common histologic variants are minimal ...

Dr. Odigwe says that other possible causes of oily urine are nephrotic syndrome (a kidney disorder) and chyluria (a condition that occurs when lymphatic fluid leaks into the kidneys).

5,6 Lysozymuria has been reported in some children with nephrotic syndrome 7 and in some adults with renal disease, 6 but no definitive evidence of the source of urinary lysozyme is available.